Improvement in carriage-springs



l. MCCUBDY.

Carriage-Springs. N0.l5],495, Patentedlune2,1874.

JOHN MGOURDY, OF SMIOKSBURG, PENNSYLVANIA.

IMPROVEMENT IN CARRIAGE-SPRINGS.

Specification forming part of Letters Patent No. 151,495, dated June 2, 1874 5 applieati;.n tiled November 17, 1873.

The accompanying drawing represents my improved spring as applied to ian axle or reach of a vehicle.

A represents the spring, having its ends formed into eyes a a for attachment to the body ofthe vehicle. Midway of its length the spring is attached to the axle or reach B by a bolt, c. On each side of the point c the spring is bent upward, then outward, then downward, and then outward, so as to form two seinicircular or semi-elliptical curves, (l d, as shown.

rlhe outer portions of the spring are curved upward after the manner of an ordinary semielliptical spring, and attached to the body oi' the vehicle, by the eyes a a, in any suitable manner. The result of forming the spring with the curves d d is, that as the ends are pressed down by the weight of the vehicle, they describe strictly vertical lines in consequence of the yielding ot' the spring at those curves, so that in attaching the ends to the body of the vehicle it is not necessary to use links or loops, as is the case with the ordinary semi-elliptical spring, where the ends are forced outward by the downward pressure.

I claim as new and desire to secure by Iletters Patent- 'lhe spring A, having the curves cl d, as shown and described, for the purpose specified.

In testimony that I cla-im the foregoing as my invention I hereunto aitlx my signature.

JOHN MCOURDY. \Vitnesses GoRNnLius LOWE, Fnaivcis ELKIN. 

